21871998

素因数分解:

$2^1\times 3^3\times {\mathrm{405037}}^1$

素因数の和:405048

約数の個数: 16

約数和(自身を含む): 48604560

約数和(自身を除く): 26732562

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 405037, 810074, 1215111, 2430222, 3645333, 7290666, 10935999, 21871998]

約数ペア:

[(1, 21871998), (2, 10935999), (3, 7290666), (6, 3645333), (9, 2430222), (18, 1215111), (27, 810074), (54, 405037)]